* Note: Whereas the Premium line always contain 100% new aftermarket OPC drums, the Standard line rarely contains a new OPC drum. Instead, these once-used OEM cartridges are reconditioned using the cartridge’s original drum and other parts. Re-use of the original OPC drum and other parts varies by application. Katun’s manufacturing and evaluation processes, managed to strict ISO-9002 requirements, determine when these parts can be reused.